Journal of

Background and Aim: Ergonomics is the science of refining and optimizing the working environment, occupation and equipment, and matching it with human capabilities and limitations. The purpose of this study was to compare the working environment conditions of the library staff with Ergonomic Principles in selected Universities of Medical Sciences in Tehran in 2016.
Materials and Methods: This is a descriptive and cross-sectional study. The population of this study included all faculty librarians of selected Medical Sciences Universities in Tehran. This study was conducted by census method and all population members (n=85) were studied. The data collection tools were ergonomic checklist in the library environment and a researcher-made questionnaire on the educational status of ergonomic principles. The data were analyzed by SPSS software version 22 after they were collected and entered into the computer.
Results: Based on the obtained findings, it became clear that the status of variables such as body conditions, work space, equipment and environmental conditions was average in terms of ergonomic principles and health variables, and safety factors and welfare facilities were at an undesirable level. In each of the variables of body condition, work space, equipment and safety factors among the libraries of selected Universities, ergonomic conditions did not have significant differences. 
Conclusion: According to the results of this study, it can be concluded that the conditions of the librarians’ working environment in the studied community were not favorable in terms of ergonomic conditions.